/*
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later
 * version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program. If not, see <http://www.gnu.org/licenses/>.
 */
package net.sf.l2j.gameserver.model;

import net.sf.l2j.gameserver.ThreadPoolManager;
import net.sf.l2j.gameserver.model.actor.instance.L2PcInstance;
import net.sf.l2j.gameserver.network.SystemMessageId;
import net.sf.l2j.gameserver.network.clientpackets.L2GameClientPacket;
import net.sf.l2j.gameserver.network.serverpackets.SystemMessage;

/**
 * This class manages requests (transactions) between two L2PcInstance.
 *
 * @author  kriau
 */
public class L2Request
{
private static final int REQUEST_TIMEOUT = 15; //in secs

protected L2PcInstance _player;
protected L2PcInstance _partner;
protected boolean _isRequestor;
protected boolean _isAnswerer;
protected L2GameClientPacket _requestPacket;

public L2Request(L2PcInstance player)
{
	_player = player;
}

protected void clear()
{
	_partner = null;
	_requestPacket = null;
	_isRequestor = false;
	_isAnswerer = false;
}

/**
 * Set the L2PcInstance member of a transaction (ex : FriendInvite, JoinAlly, JoinParty...).<BR><BR>
 */
private synchronized void setPartner(L2PcInstance partner)
{
	_partner = partner;
}

/**
 * Return the L2PcInstance member of a transaction (ex : FriendInvite, JoinAlly, JoinParty...).<BR><BR>
 */
public L2PcInstance getPartner()
{
	return _partner;
}

/**
 * Set the packet incomed from requestor.<BR><BR>
 */
private synchronized void setRequestPacket(L2GameClientPacket packet)
{
	_requestPacket = packet;
}

/**
 * Return the packet originally incomed from requestor.<BR><BR>
 */
public L2GameClientPacket getRequestPacket()
{
	return _requestPacket;
}

/**
 * Checks if request can be made and in success case puts both PC on request state.<BR><BR>
 */
public synchronized boolean setRequest(L2PcInstance partner, L2GameClientPacket packet)
{
	if (partner == null)
	{
		_player.sendPacket(new SystemMessage(SystemMessageId.YOU_HAVE_INVITED_THE_WRONG_TARGET));
		return false;
	}
	if (partner.getRequest().isProcessingRequest())
	{
		SystemMessage sm = new SystemMessage(SystemMessageId.C1_IS_BUSY_TRY_LATER);
		sm.addString(partner.getDisplayName());
		_player.sendPacket(sm);
		sm = null;
		return false;
	}
	if (isProcessingRequest())
	{
		_player.sendPacket(new SystemMessage(SystemMessageId.WAITING_FOR_ANOTHER_REPLY));
		return false;
	}
	
	_partner = partner;
	_requestPacket = packet;
	setOnRequestTimer(true);
	_partner.getRequest().setPartner(_player);
	_partner.getRequest().setRequestPacket(packet);
	_partner.getRequest().setOnRequestTimer(false);
	return true;
}

private void setOnRequestTimer(boolean isRequestor)
{
	_isRequestor = isRequestor ? true : false;
	_isAnswerer = isRequestor ? false : true;
	ThreadPoolManager.getInstance().scheduleGeneral(new Runnable()
	{
		public void run()
		{
			clear();
		}
	}, REQUEST_TIMEOUT * 1000);
	
}

/**
 * Clears PC request state. Should be called after answer packet receive.<BR><BR>
 */
public void onRequestResponse()
{
	if (_partner != null)
	{
		_partner.getRequest().clear();
	}
	clear();
}

/**
 * Return True if a transaction is in progress.<BR><BR>
 */
public boolean isProcessingRequest()
{
	return _partner != null;
}
}
